Home / 10,074.25-15,111.35-2,678.71

Finding the Fourth Proportional to 10,074.25, 15,111.35 and 2,678.71

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Solution

The fourth proportional to 10,074.25, 15,111.35 and 2,678.71 is: 4,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.25 : 15,111.35 = 2,678.71 : x
  2. Step 2: Convert to fraction form
    10,074.25/15,111.35 = 2,678.71/x
  3. Step 3: Cross multiply
    10,074.25x = 15,111.35 × 2,678.71
  4. Step 4: Simplify right side
    10,074.25x = 40,478,835.41
  5. Step 5: Solve for x
    x = 40,478,835.41/10,074.25
  6. Step 6: Final answer
    x = 4,018.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.